18/08/2015
Critical Periods in Life Time
In life time some periods occur, which by virtue of their greatest importance are called :Critical Periods.These are as under :-
1.Puberty 2. Senility
Puberty in Girls___Due to development of female glands, breasts develop,pubic and axiillary hair grow,the external genetalia become enlarged, fat is deposited on the breasts,buttocks and thighs .the pelvis and its contents enlarge and takes female shape , cyclical changes begin,menstruation begin,
Puberty in boys.
Pituitary gland hormone start stimulation,facial,axillary and oubic hair grow. The external genetalia become larger., the larynx doubles in size and the voice becomes deeper. There is a spurt of growth.
Senile age.
In old age ,weight is reduced, height may become less as a result of the inter vertebral bodies,,the absorption of calcium from the intestines declines and decalcification of bones starts,with loss of teeth mandible becomes slimmer and its angle pens out,the cartilages ossify,the skin looses elasticity,,the ability to hear pitched sounds diminishes, eye sight become foggy..
In both puberty and senile life severe emotional changes appear..During adult life glandular secretions increase and in old these secretions decrease.. As a result thereof emotional disturbances appear. In adult life diet should rich in protien, fat, with less carbohydrates. In old , these things are not absorbed in.intestines, Hence muscular system weakens,and becomes flabby,.The diet for old people should simple, that can be easily absorbed,. Hot and fatty food increases blood cholesterol, one easily becomes hypertensive. This may also be due to hardening of blood vessels,.The excess in meat will increase uric acid, which may result in stiffness and swelling of joints., and walking becomes difficult. Old people become over sensitive and irritable. It may lead to sadness, memory loss and other mental disorders. The old men may dealt with affection and politely..They should be given due regard.